Actually, the calendar view is order by alphabetical order only.
Let the users choose and reorganize the calendars as they want could be user friendly for them. We have to change the name of the physicians to reorganize them, but this means change everywhere in the notes and forms so not possible.
Also requested by Effiscience, a nursing clinic with 3 sites, that uses generic calenders exclusively.
The calenders represent the different rooms within the same clinic, as well as the different sites, ex :
perfusion 1 - site A
perfusion 2 - site A
perfusion 3 - site A
perfusion 1 - site B
perfusion - site C
lab 1 - site A
lab 2 - site A
lab 1 - site B
The receptionists also work in different rooms within the same day, which means they regularly need to switch calenders to reflect the rooms they are in and services offered.